1.Sports Fitness: our exercise skipping rope can shape your cardio endurance, stamina and speed, while improving the muscle tension of your whole body. A great choice for boxing, MMA and cross training. ADJUSTABLE LENGTH.Design with 9 feet long of the rope, it can be adjusted quickly according to your height. Suitable for adults and children. 2.FAST AND STABLE.Coated with PVC(Environmental protection granule),maximum the life of your steel wire rope,with ball bearing system avoids the twisting, winding or bending to ensure SMOOTH,STABLE and relaxed rotation,100% tangle free shape your cardio endurance, stamina and speed, while improving the muscle tension of your whole body. A great choice for boxing and cross training. 3.ERGONOMIC AND COMFORTABLE. With 6 inch soft memory foam grips for extra comfort to bring stability,you will feel soft and sweat-absorbent when you doing exercise for a long time. 4.This premium jump rope design to improve and relax tension of your arm,ab core and making your mind focous on your feet and keep balance when enjoying the perfect moment after work,is great for cardio training as well.